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ECU Calibrating


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I have an 09 Sierra 1500 with a LU3, 4th Gen 4.3L v6. I eventually want to turbo or supercharge my truck, but I realize before I put any wrench time in that I will need an ECU calibrator (tuner) because I drive my truck daily and don't exactly have the money to throw in all the parts I want and take it to the local dyno tuning shop. What would be the cheapest tuner that would support a wideband exhaust analyzer, boost pressure sensor, ect? I plan to start with a bigger cam and upgraded valvesprings.

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Is ecu tuning difficult? So far my only engine building experience is a 350 sbc, i rebuilt the bottom end with a .020 over cower stroker kit, comp cams valve train kit and a holley 850 carb, and I never took it to a dyno. The only hint at how much power it made was the fact that it turned a stock turbo 350 trans to shrapnel the first time I really got on it.

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Sorry but why spend money on a NA V6? You're spending money to catch up to a V8 that has a lot more potential in the first place IMO. Did you already consider the gearing and tranny aspects?

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